Novel Determinants and Measures of Smokeless Tobacco Use: Study 2

NCT ID: NCT01067599

Last Updated: 2018-02-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

278 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-03-31

Study Completion Date

2016-10-31

Brief Summary

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The research project will determine the level of nicotine in ST products that will lead to the greatest reduction in toxicant exposure

Detailed Description

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This is a randomized, multi-site trial determining the effects of switching smokeless tobacco (ST) users to lower toxicant ST products which vary in nicotine levels on biomarkers of exposure and patterns of use. ST users will undergo a two week baseline assessment period and then randomly assigned to one of three oral tobacco products (lower NNK plus NNN product with three different levels of nicotine) for a period of 8-weeks. Follow-up will occur at 9 and 20 weeks.

Conditions

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Tobacco Use Disorder Nicotine Dependence

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Low nicotine

Conventional smokeless tobacco product with 1) NNN plus NNK of \<2 μg/gram and nicotine levels of \>5 mg/g wet weight

Group Type ACTIVE_COMPARATOR

Low nicotine

Intervention Type OTHER

Comparison of different dosages of nicotine effect on tobacco use patterns, subjective response and biomarker levels.

Medium nicotine

Conventional smokeless tobacco product with ) NNN plus NNK of \<2 μg/gram and nicotine levels of 3-5 mg/g wet weight.

Group Type ACTIVE_COMPARATOR

Medium nicotine

Intervention Type OTHER

Comparison of different dosages of nicotine effect on tobacco use patterns, subjective response and biomarker levels.

High nicotine

Conventional smokeless tobacco product with NNN plus NNK of \<2 μg/gram and nicotine levels of \<3 mg/g wet weight

Group Type ACTIVE_COMPARATOR

High nicotine

Intervention Type OTHER

Comparison of different dosages of nicotine effect on tobacco use patterns, subjective response and biomarker levels.

Interventions

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Low nicotine

Comparison of different dosages of nicotine effect on tobacco use patterns, subjective response and biomarker levels.

Intervention Type OTHER

Medium nicotine

Comparison of different dosages of nicotine effect on tobacco use patterns, subjective response and biomarker levels.

Intervention Type OTHER

High nicotine

Comparison of different dosages of nicotine effect on tobacco use patterns, subjective response and biomarker levels.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Using a consistent and daily amount of ST with specific nicotine and tobacco-specific nitrosamine (TSNA) levels for the past year;
2. In good physical health (no unstable medical condition);
3. Stable, good mental health (e.g., no recent unstable or untreated psychiatric diagnosis, including substance abuse, as determined by the DSM-IV criteria).

Exclusion Criteria

1. Subjects must not be currently using other tobacco or nicotine products.
2. Female subjects cannot be pregnant or nursing.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Cancer Institute (NCI)

NIH

Sponsor Role collaborator

National Institute on Drug Abuse (NIDA)

NIH

Sponsor Role collaborator

University of Minnesota

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Dorothy Hatsukami, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Minnesota

Locations

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University of Minnesota

Minneapolis, Minnesota, United States

Site Status

Oregon Research Institute

Eugene, Oregon, United States

Site Status

Countries

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United States

Other Identifiers

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1R01CA141531

Identifier Type: NIH

Identifier Source: secondary_id

View Link

1R01CA141531-01

Identifier Type: NIH

Identifier Source: org_study_id

View Link

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